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Product Detailed Parameters
- Description：MEM FF IND I2C TPM 28TSSOP
- Series：-
- Mfr：Microchip Technology
- Package：Tube
- Applications：Trusted Platform Module (TPM)
- Core Processor：AVR
- Program Memory Type：EEPROM
- Controller Series：-
- RAM Size：-
- Interface：I2C
- Number of I/O：4
- Voltage - Supply：3.3V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：28-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：28-TSSOP
- Grade：-
- Qualification：-
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Overview
The AT97SC3205T-U3A1420B is a Trusted Platform Module (TPM) compliant with the TCG TPM Version 1.2 specification. It integrates an Atmel AVR RISC microprocessor, hardware asymmetric crypto engine, and internal EEPROM for RSA keys. The device supports I2C communication at 400kHz Fast Mode or 100kHz Standard Mode. It features FIPS-140-2 certification for its RNG, HMAC, AES, SHA, and RSA engines. The component operates on a 3.3V supply voltage and includes 2066 bytes of NV storage for user-defined data.
Feature Summary
- Compliant with TCG TPM Version 1.2 Specification
- FIPS-140-2 Certified Crypto Engine (RNG, HMAC, AES, SHA, RSA)
- I2C Interface supporting 400kHz Fast Mode and 100kHz Standard Mode
- Internal EEPROM Storage for RSA Keys and 2066 bytes User Data
Applications
- Embedded system security modules
- Hardware physical presence indicators
- Secure key generation and storage
Procurement Notes
Verify the specific ordering suffix U3A1420B against the manufacturer's current catalog to confirm package type and temperature range availability. Confirm RoHS compliance status and check for any active production lifecycle notices prior to procurement.
Selection Notes
Select this component for applications requiring TCG TPM 1.2 compliance with I2C connectivity. Ensure the design accommodates a 3.3V power supply and provides adequate decoupling capacitors (2200pF to 4700pF) near VCC pins. Verify that the required operating temperature range matches the specific commercial or industrial variant selected.
Part Context
The AT97SC3205T series was originally developed by Atmel Corporation, which was acquired by Microchip Technology. This summary datasheet documents the technical specifications for the TPM module, including pin configurations for 28-lead Thin TSSOP and 32-pad QFN packages.
Replacement Considerations
Consult the manufacturer's cross-reference documentation for verified substitutes. Alternative TPM solutions may require interface protocol adjustments if they do not support I2C or TCG 1.2 standards.
